The value of x from the figure is 108 degrees
Circle geometry
From the given diagram, the angle at the vertex is half the difference of its arc. Hence:
72 = 1/2(360-x-x)
144 = 360 - 2x
Subtract 360 from both sides
144 - 360 = -2x
-216 = -2x
x = 216/2
x = 108
Hene the value of x from the figure is 108 degrees
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